It’s not just a No-Shave November asking you to keep your manhood held high with that beard, but Delhi’s choking air pollution too. Bizarre?

Yes! According to a study, in the mid-Victorian period, doctors prescribed men to wear beards as a means to ward off illness and common ailments such as sore throat since they were thought to act as natural air filters. A thick beard, it was reasoned, would capture the impurities before they could get inside the body.

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By mid-Victorian period, however, beard came back into fashion. The period known as the age of exploration, of hunters, climbers, and explorers caused a change in the ideals of masculinity and people started to imitate the great explorers and adventurers who were known to have beards.